Anna Friel strips down for her role in the West End production of "Breakfast at Tiffany's"

The actress, who is currently starring as Holly Golightly in ‘Breakfast at Tiffany’s’ in London’s West End, was photographed sharing a lingering kiss with John Cross, 23, at a London bar on Saturday night, days after they enjoyed an evening out with her partner David Thewlis.

An onlooker said: “They have a great chemistry on stage and are obviously close friends off it.  But I was still surprised when I saw Anna plant him with a kiss on the lips.”

However, despite their kiss, pals of the 33-year-old British beauty insist there is nothing romantic going on between her and John.

A pal said: “Anna is queen of touchy feely – but they’re just good friends.”

Anna – who has a four-year-old daughter Gracie with David – has previously spoken about how much she likes showing affection to her co-stars, including ‘Lee Pace’, who she starred opposite in US TV drama ‘Pushing Daisies’.

She said: "It's not nice to work with someone as gorgeous as Lee and not to be able to give him a hug. I'm a tactile person and hugs are something I hold dear to my heart."